Hello everyone! Thanks in advance for taking the time to read this,
I’m pretty new to geometry nodes and wanted to give it a try with an animation I’m working on.
I’m not sure if this is the best approach but basically what I want is for each cube to rotate independently and randomally, I know this is pretty “easy” to do if you create the geometry from scratch using geo nodes, but in this case the geometry was already created, all the cubes pertain to the same mesh and are placed in their positions precisely. I need them to rotate randomally on their own axis and I was wondering if there is any way to do this using geometry nodes.
I’m not sure how to do this because if I edit the rotation it affects the whole mesh, I need it to affect each cube independently. Is there any way to do this using geometry nodes? Maybe a command to separate the geometry by loose parts and then affect each cube?
Again, it may seem that cubes habe been created using geometry nodes but it’s not the case, I used a mesh because I needed the cubes to be displaced in a certain position.
What are you using the GN for? Might be easier to do the rotation on these cubes as individual cubes (GN doesn’t know their origin nor axes unless you jump through hoops.)
If I had a bunch of cubes, and I wanted to rotate them randomly, I might make each cube a separate object and then, perhaps, give them each a GN modifier that rotated them randomly in its own space. Could use a random seeded from object position, and then just copy the GN modifier to every cube.
The node tree adds one island per frame to the node tree. I save the pivot point via the attribute statistic node. Then i convert the mesh to instance and save that pivot point to the instance. Then in the simulation loop i just have to rotate them randomly.
Important: You have to start the simulation at frame 0 so that it works correctly.
Is there any place where I can start learning Geometry nodes that is worth it? Been trying to look tutorials on YT but there is probably good channels that I don’t know about.
Thanks again for your time and for solving my issue!
Hi, I have somewhat siimilar problem, may be you can help with that?
I need to align all separate objects in mesh to the surface, the same if I used Align Tools with min/max settings, but without separating mesh by loose parts
